Sharepoint 2013 library content type problem

Hey guys,

i got weird issue after deploying office web apps. couldn't find answer by search i appreciate any help you can provide.

By default library setting "Allow management of content types:FALSE"

when i press new document on ribbon it ask for document name and open office web apps.

how ever if i change to "Allow management of content types:True"

it try to open office on client side.

even w/o adding additional content types ....

i used this script to force open everything in browser

$defaultOpenBehaviorFeatureId = $(Get-SPFeature -limit all | where {$_.displayname -eq "OpenInClient"}).Id 
Get-SPSite -limit ALL |foreach{ Disable-SPFeature $defaultOpenBehaviorFeatureId -url $_.URL }

and still having this issue.

can any one shed light on this problem?